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“Consider the issue of documenting a system using only electronic models developed with a full life cycle development (CASE) tool. The advantages are obvious (for example, the analyst modifies models to reflect new requirements and automatically generates an updated system). Are there any disadvantages? Hint: The system might be maintained for a decade or more”.

Q2.

“Some types of system documentation (such as models developed during the analysis phase) are seldom looked at after the system is made operational. What are the advantages and disadvantages of not keeping such documentation types?”